METHOD AND COMPOSITION FOR FRACTURING SUBTERRANEAN FORMATIONS

摘要

An aqueous gel contains an organotitanate chelate as cross-linking agent, and a retarding agent which delays the crosslinking of the gel, the retarding agent comprising a polyhydroxyl-containing compound. The gel is useful for fracturing and placing propping agents within a subterranean formation. The gel developes a high viscosity (due to delayed crosslinking) when in the formation and has pumping characteristics in turbulent flow similar to those of water.